Update Pokefan531's handheld color shaders

handheld/shaders/color/gba-color.slang

@@ -21,7 +21,7 @@ layout(std140, set = 0, binding = 0) uniform UBO
 */
 // Shader that replicates the LCD dynamics from a GameBoy Advance
 
-#pragma parameter darken_screen "Darken Screen" 0.5 0.0 2.0 0.05
+#pragma parameter darken_screen "Darken Screen" 0.5 -0.25 2.0 0.05
 
 #define target_gamma 2.2
 #define display_gamma 2.2
@@ -31,15 +31,15 @@ layout(std140, set = 0, binding = 0) uniform UBO
 #define blr 0.0
 #define blg 0.0
 #define blb 0.0
-#define r 0.81
-#define g 0.67
-#define b 0.73
+#define r 0.845
+#define g 0.68
+#define b 0.755
 #define rg 0.09
-#define rb 0.15
-#define gr 0.23
-#define gb 0.12
-#define br -0.04
-#define bg 0.24
+#define rb 0.16
+#define gr 0.17
+#define gb 0.085
+#define br -0.015
+#define bg 0.23
 #define overscan_percent_x 0.0
 #define overscan_percent_y 0.0
 

handheld/shaders/color/nds-color.slang

@@ -24,15 +24,15 @@ layout(std140, set = 0, binding = 0) uniform UBO
 #define blr 0.0
 #define blg 0.0
 #define blb 0.0
-#define r 0.82
-#define g 0.66
-#define b 0.81
-#define rg 0.085
-#define rb 0.085
-#define gr 0.25
-#define gb 0.105
-#define br -0.07
-#define bg 0.255
+#define r 0.83
+#define g 0.65
+#define b 0.765
+#define rg 0.105
+#define rb 0.105
+#define gr 0.20
+#define gb 0.13
+#define br -0.03
+#define bg 0.245
 #define overscan_percent_x 0.0
 #define overscan_percent_y 0.0